Successive paraelectric-antiferroelectric-ferroelectric phase transitions of wet-chemically prepared PbHo1/2Nb1/2O3

被引：12

作者：

Park, Y ^{[1
]}

机构：

[1] Univ Cambridge, Dept Mat Sci & Met, Cambridge CB2 3QZ, England

来源：

JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS | 1998年 / 59卷 / 09期

关键词：

ceramics; oxides; phase transitions; crystal structure;

D O I：

10.1016/S0022-3697(98)00232-7

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Evidence is presented for successive paraelectric-antiferroelectric-ferroelectric phase transitions of wet-chemically prepared PbHo1/2Nb1/2O3 ceramics. Details are given of measurements of superlattice reflection, dielectric constant, lattice parameters, specific heat capacity, and polarisation-electric field hysteresis. It was observed that, in ordered PbHo1/2Nb1/2O3, there is dielectric dispersion associated with the antiferroelectric-ferroelectric transition in the temperature range -120 degrees C similar to - 110 degrees C. (C) 1998 Elsevier Science Ltd. All rights reserved.

引用

页码：1423 / 1428

页数：6

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